Perl does not have a "compile" flag for all the good reasons explained in this discussion, so your argument is invalid ab initio.

Packing Perl code is just a thinly disguised "zipping" of the interpreter + modules + script. Adding some source-filter code will not make it any more secure or less prone to be looked into. Anyone who can open a Perl File and start a Google search will find countless links to undo the obfuscation. Therefore Anonymous Monk's comment was wrong and likely to misguide our young Monks.

CountZero

A program should be light and agile, its subroutines connected like a string of pearls. The spirit and intent of the program should be retained throughout. There should be neither too little or too much, neither needless loops nor useless variables, neither lack of structure nor overwhelming rigidity." - The Tao of Programming, 4.1 - Geoffrey James

You are being pointlessly rude and you are wrong for most definitions of wrong. Rinse and repeat ... the original request was for something that: "Every one knows that someone that wants to get the code can, but the casual 'expert' would be deterred by '...It looks like 'C' to me!'"